1 /***************************************************************************
2 * Copyright (C) 2005-2012 by the Quassel Project *
3 * devel@quassel-irc.org *
5 * This program is free software; you can redistribute it and/or modify *
6 * it under the terms of the GNU General Public License as published by *
7 * the Free Software Foundation; either version 2 of the License, or *
8 * (at your option) version 3. *
10 * This program is distributed in the hope that it will be useful, *
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
13 * GNU General Public License for more details. *
15 * You should have received a copy of the GNU General Public License *
16 * along with this program; if not, write to the *
17 * Free Software Foundation, Inc., *
18 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
19 ***************************************************************************/
21 #include "legacyconnection.h"
23 LegacyConnection::LegacyConnection(QTcpSocket *socket, QObject *parent)
24 : RemoteConnection(socket, parent),
26 _useCompression(false)
28 _stream.setDevice(socket);
29 _stream.setVersion(QDataStream::Qt_4_2);
31 connect(socket, SIGNAL(readyRead()), SLOT(socketDataAvailable()));
35 void LegacyConnection::setSignalProxy(SignalProxy *proxy)
37 RemoteConnection::setSignalProxy(proxy);
40 // enable compression now if requested - the initial handshake is uncompressed in the legacy protocol!
41 _useCompression = socket()->property("UseCompression").toBool();
47 void LegacyConnection::socketDataAvailable()
50 while (readSocketData(item)) {
51 // if no sigproxy is set, we're in handshake mode and let the data be handled elsewhere
53 emit dataReceived(item);
55 handlePackedFunc(item);
60 bool LegacyConnection::readSocketData(QVariant &item)
62 if (_blockSize == 0) {
63 if (socket()->bytesAvailable() < 4)
65 _stream >> _blockSize;
68 if (_blockSize > 1 << 22) {
69 close("Peer tried to send package larger than max package size!");
73 if (_blockSize == 0) {
74 close("Peer tried to send 0 byte package!");
78 if (socket()->bytesAvailable() < _blockSize) {
79 emit transferProgress(socket()->bytesAvailable(), _blockSize);
83 emit transferProgress(_blockSize, _blockSize);
87 if (_useCompression) {
91 int nbytes = rawItem.size();
93 const char *data = rawItem.constData();
94 if (nbytes < 4 || (data[0] != 0 || data[1] != 0 || data[2] != 0 || data[3] != 0)) {
95 close("Peer sent corrupted compressed data!");
100 rawItem = qUncompress(rawItem);
102 QDataStream itemStream(&rawItem, QIODevice::ReadOnly);
103 itemStream.setVersion(QDataStream::Qt_4_2);
110 if (!item.isValid()) {
111 close("Peer sent corrupt data: unable to load QVariant!");
119 void LegacyConnection::writeSocketData(const QVariant &item)
121 if (!socket()->isOpen()) {
122 qWarning() << Q_FUNC_INFO << "Can't write to a closed socket!";
127 QDataStream out(&block, QIODevice::WriteOnly);
128 out.setVersion(QDataStream::Qt_4_2);
130 if (_useCompression) {
132 QDataStream itemStream(&rawItem, QIODevice::WriteOnly);
133 itemStream.setVersion(QDataStream::Qt_4_2);
136 rawItem = qCompress(rawItem);
144 _stream << block; // also writes the length as part of the serialization format
148 void LegacyConnection::handlePackedFunc(const QVariant &packedFunc)
150 QVariantList params(packedFunc.toList());
152 if (params.isEmpty()) {
153 qWarning() << Q_FUNC_INFO << "Received incompatible data:" << packedFunc;
157 RequestType requestType = (RequestType)params.takeFirst().value<int>();
158 switch (requestType) {
160 if (params.count() < 3) {
161 qWarning() << Q_FUNC_INFO << "Received invalid sync call:" << params;
164 QByteArray className = params.takeFirst().toByteArray();
165 QString objectName = params.takeFirst().toString();
166 QByteArray slotName = params.takeFirst().toByteArray();
167 handle(SignalProxy::SyncMessage(className, objectName, slotName, params));
171 if (params.empty()) {
172 qWarning() << Q_FUNC_INFO << "Received empty RPC call!";
175 QByteArray slotName = params.takeFirst().toByteArray();
176 handle(SignalProxy::RpcCall(slotName, params));
180 if (params.count() != 2) {
181 qWarning() << Q_FUNC_INFO << "Received invalid InitRequest:" << params;
184 QByteArray className = params[0].toByteArray();
185 QString objectName = params[1].toString();
186 handle(SignalProxy::InitRequest(className, objectName));
190 if (params.count() != 3) {
191 qWarning() << Q_FUNC_INFO << "Received invalid InitData:" << params;
194 QByteArray className = params[0].toByteArray();
195 QString objectName = params[1].toString();
196 QVariantMap initData = params[2].toMap();
197 handle(SignalProxy::InitData(className, objectName, initData));
201 if (params.count() != 1) {
202 qWarning() << Q_FUNC_INFO << "Received invalid HeartBeat:" << params;
205 // The legacy protocol would only send a QTime, no QDateTime
206 // so we assume it's sent today, which works in exactly the same cases as it did in the old implementation
207 QDateTime dateTime = QDateTime::currentDateTimeUtc();
208 dateTime.setTime(params[0].toTime());
209 handle(RemoteConnection::HeartBeat(dateTime));
212 case HeartBeatReply: {
213 if (params.count() != 1) {
214 qWarning() << Q_FUNC_INFO << "Received invalid HeartBeat:" << params;
217 // The legacy protocol would only send a QTime, no QDateTime
218 // so we assume it's sent today, which works in exactly the same cases as it did in the old implementation
219 QDateTime dateTime = QDateTime::currentDateTimeUtc();
220 dateTime.setTime(params[0].toTime());
221 handle(RemoteConnection::HeartBeatReply(dateTime));
229 void LegacyConnection::dispatch(const SignalProxy::SyncMessage &msg)
231 dispatchPackedFunc(QVariantList() << (qint16)Sync << msg.className() << msg.objectName() << msg.slotName() << msg.params());
235 void LegacyConnection::dispatch(const SignalProxy::RpcCall &msg)
237 dispatchPackedFunc(QVariantList() << (qint16)RpcCall << msg.slotName() << msg.params());
241 void LegacyConnection::dispatch(const SignalProxy::InitRequest &msg)
243 dispatchPackedFunc(QVariantList() << (qint16)InitRequest << msg.className() << msg.objectName());
247 void LegacyConnection::dispatch(const SignalProxy::InitData &msg)
249 dispatchPackedFunc(QVariantList() << (qint16)InitData << msg.className() << msg.objectName() << msg.initData());
253 void LegacyConnection::dispatch(const RemoteConnection::HeartBeat &msg)
255 dispatchPackedFunc(QVariantList() << (qint16)HeartBeat << msg.timestamp().time());
259 void LegacyConnection::dispatch(const RemoteConnection::HeartBeatReply &msg)
261 dispatchPackedFunc(QVariantList() << (qint16)HeartBeatReply << msg.timestamp().time());
265 void LegacyConnection::dispatchPackedFunc(const QVariantList &packedFunc)
267 writeSocketData(QVariant(packedFunc));